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Finding the Fourth Proportional to 126,611.66, 174,721.11 and 70,021.82

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Solution

The fourth proportional to 126,611.66, 174,721.11 and 70,021.82 is: 96,628.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,611.66 : 174,721.11 = 70,021.82 : x
  2. Step 2: Convert to fraction form
    126,611.66/174,721.11 = 70,021.82/x
  3. Step 3: Cross multiply
    126,611.66x = 174,721.11 × 70,021.82
  4. Step 4: Simplify right side
    126,611.66x = 12,234,290,114.62
  5. Step 5: Solve for x
    x = 12,234,290,114.62/126,611.66
  6. Step 6: Final answer
    x = 96,628.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.